Adds a test for apply --prune --prune-whitelist

hack/make-rules/test-cmd.sh

@@ -1138,6 +1138,24 @@ __EOF__
   kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
   kubectl delete pvc b-pvc 2>&1 "${kube_flags[@]}"
 
+  ## kubectl apply --prune --prune-whitelist(-w)
+  # Pre-Condition: no POD exists
+  kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
+  # apply pod a
+  kubectl apply --prune -l prune-group=true -f hack/testdata/prune/a.yaml "${kube_flags[@]}"
+  # check right pod exists
+  kube::test::get_object_assert 'pods a' "{{${id_field}}}" 'a'
+  # apply svc and don't prune pod a by overwriting whitelist
+  kubectl apply --prune -l prune-group=true -f hack/testdata/prune/svc.yaml -w core/v1/Service 2>&1 "${kube_flags[@]}"
+  kube::test::get_object_assert 'service prune-svc' "{{${id_field}}}" 'prune-svc'
+  kube::test::get_object_assert 'pods a' "{{${id_field}}}" 'a'
+  # apply svc and prune pod a with default whitelist
+  kubectl apply --prune -l prune-group=true -f hack/testdata/prune/svc.yaml 2>&1 "${kube_flags[@]}"
+  kube::test::get_object_assert 'service prune-svc' "{{${id_field}}}" 'prune-svc'
+  kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
+  # cleanup
+  kubectl delete svc prune-svc 2>&1 "${kube_flags[@]}"
+
   ## kubectl run should create deployments or jobs
   # Pre-Condition: no Job exists
   kube::test::get_object_assert jobs "{{range.items}}{{$id_field}}:{{end}}" ''

hack/testdata/prune/svc.yaml

+apiVersion: v1
+kind: Service
+metadata:
+  name: prune-svc
+  labels:
+    prune-group: "true"
+spec:
+  selector:
+    prune-group-nomatch: "true"
+  ports:
+  - port: 80
+    protocol: TCP